"I am very pleased to be appointed the head coach of AS Roma," Portuguese Fonseca said in a statement https://www.asroma.com/en/news/2019/6/fonseca-to-become-new-roma-head-coach. "I want to thank the club's management for the opportunity they have given me. I am excited and motivated by the task ahead of us."
The 46-year-old is a permanent replacement for Eusebio Di Francesco, who was sacked in March, and Roma said they had the option of extending his contract by a year until 2022.
"Paulo is a young and ambitious coach with international experience, a winning mentality and a reputation for bold, attacking football that will excite our fans," Roma president Jim Pallotta said.
"From the very first conversations we had with him, he made it very clear he wanted to come to Roma and was excited about the challenge of working with our players and putting out a team that the fans can be proud of."
Fonseca will have the task of leading Roma back into the Champions League after the club finished sixth in Serie A and missed out on qualifying for Europe's premier club competition for the first time since 2013.
(Reporting by Rohith Nair in Bengaluru, editing by Nick Mulvenney)
